Plumber&#39;s heating device



June 10 1924,

1,4911%. W. F. PAGEL PLUMBERS HEATING DEVICE Original File ec. 11, 1922 2 Sheets-Sheet 1 4! JP9- h f' i I 13 I ""3 I 8 I I I 3 i I 3 I 2 June 10, 192%. 1,497,118

I V 'W. F. PAGEL PLUMBERS HEATING DEVICE Original Filed Dgc- 11, 1 2 Sheets-Sheet 2 Patented June 10, 1924 WILLIAM F. TAG-EL, 0F SYGAMORE, ILLINOIS.

PLUMBER/S HEATING DEVICE.

Original application filed December 11, 1922, Serial No. 606,019. Divided an 1923. Serial No. 643,300.

To all whom it may concern:

Be it known that I, WILLIAM F. PAGEL, a citizen of the United States, and resident of Sycamore, in the county of De Kalb and State of Illinois, have invented certain new and useful Improvements in Plumbers Heating Devices, of which the following is a specification. v

This present application is a division of my co-pending application filed December 11, 1922, Serial Number 606,019.

My invention relates to improvements in plumbers heating devices and has special reference to the construction of plumbers furnaces and to burners for use therewith. Such furnaces commonly employ a liquid fuel such as gasoline and it is one of my main objects to provide'an improved burner by which I am enabled to obtain more per feet and satisfactory combustion than heretofore and by which I can employ the lower grade oils such as kerosene, with satisfactor 1 results.

he burner of my invention includes preheating channels or passages for the fuel so arranged that the fuel-is practically gasified before it reaches the fuel exit openings and also the provision of a plurality of exit nozzles arranged within a housing and so relatively inclined that the ejected streams of fluid fuel cross eachv other within the housing, such crossing and the resulting interpenetration efi'ecting a substantially perfect mixing of the preheated fuel and air so that practically perfect combustion is the result.

My invention will be more readily understood by reference to the accompanying drawings forming part of this specification, and in which Figure 1 is a side elevation of a plumbers furnace made in accordance with my invention;

Figure 2 is a vertical central section of my novel burner on the line 22 of Figures 8 and 1;

Figure 3 is a vertical central section of the burner on the line 33 of Figure 2;

Figures 4 and 5 are horizontal sections on the lines H and 5-5 respectively of Figure 2; and

Figure 6 is a view similar to Figure 5 showing a slight modification of my novel burner.

In said drawings 1 represents. a fuel reser-.

veil" of the usual character which forms the base of the furnace and is provided with a filling plug 2 at one side of the top which carries a hand air pump 3 by which pressure can be applied to the base to force the liquid fuel contained therein up into the burner. The base is provided with a central opening in which is secured a base bracket 4: which carries a frame work arranged above the base and within which the The base burner is supported for use. bracket 4 has a central nozzle 5 in which the side outlet of a T-connection 6 is secured One end of the T is connected to a pipe 7 through which fuel is fed from the base to a burner 8 supported above the base. opposite end of the T is closed by a packing member 9 through which a valve stem 10 is projected for regulating the outflow of fuel from the base to the burner. The burner 8 is arranged centrally above the base and is enclosed within a shell 11 which is open at its bottom end 12 for the admission of air and is provided in its side walls with a plurality of openings 13 for the same purpose.

This shell is slightly smaller in diameter at the bottom than at the top such cone shape assisting in the production of a draft through the burner. The shell 11 .depends from a top plate 14: which is secured and supported on'the upper ends of three vertical posts 15. These posts rise from the bracket 4 and are rigid therewith. The top plate 14 is provided with upstanding thin members 16 upon which the vessel or pot which it is desired to heat can be supported.

In operating such a furnace it is essential that the liquid fuel which is carried in the base shall be gasified before. it escapes through the burner nozzles as otherwise the fuel cannot. be properlyburned within the small compass of such a device.

Referring now particularly to Figures 2 to 5 inclusive, it will be seen that the burner 8 comprises a shell 17 smaller in diameter than the large shell 11 and having a cylindrical portion 18 depending from a ring 19. Below the cylindrical part 18 the shell is partly closed by a floor 20 and below'this floor is provided with two outwardly inclined burner passages 21 one at each side, the outer walls of these passages ending at their upper ends coincident with theinner surface of the cylindrical portion l8.= The walls of these passages at their ends are outd this application filed June 4,

The

wardly beveled as shown at '22 to serve as injector inlet openings for the air. Between these inlet passages 21 I provide a central hub or boss 23 which ends at its lower end 24 just below the entrance end of the two passages and is internally threaded at its lower end to receive the upper end 25 of a T-shaped burner member 26. The ring 19 at the upper end of the burner is provided with a boss 27 at one side which is internally threaded to receive the upper end of the fuel pipe 7. For preheating the fuel before it reaches the fuel delivery outlets provided in the member 26, l bore holes 28 horizontally from the opening 29 which receives the upper end of the said pipe 7 to substantially the middle of the burner and I connect these holes with the opening 30 in the lower end of the hub 21- which receives the stem 25 of the burner member 26 by vertical bores 31, providing inclined walls or projections 32 within the cylindrical portion 18 of the burner through which to produce these passages 31. The passages 28 and 31 are relatively quite long and of small diameter and as they are produced in the walls of the burner within which the fuel is burned the fuel in flowing through these passages becomes very highly heated by the time it reaches the opening 30.

The CIOSS'rbLlI'HQY member 26 comprises a vertical stem 33 ending at its upper end in the stem 25 which is secured in the opening 30. Projecting outwardly from the central stem are radial arms 34; which end in heads 35 and this member is provided with a cen tral feed passage 36 communicating with the opening 30 and with feed passages 37 extending through the arms 34s The heads 35 are arranged on the axial extensions of the burner openings 21. That is, they are inclined inwardly or toward each other and the central feed passages 37 end at their upper ends in minute delivery openings 38 which are adapted to project the fuel cen trally through the burner passages 21 and to cause the projected streams of fuel to meet and interpenetrate with the burner. The upper ends 39 of the heads 35 are arranged below the flared mouths 22 of the passages 21 providing ample space between these heads and the body of the burner for the admission of air for combustion pur poses. The lower ends of the passages 3? are closed by removable plugs 10 for convenience in clearing the feed openings 38. The floor 20 which closes the lower end of the cylindrical part 18 of the burner is provided with auxiliary air inlet openings 41, preferably all of these openings arranged symmetrically in relation to the burner passages 21. The minute fee-d openings 38 tend to hold the fuel back and cause it to be held under considerable pressure by reason of the high temperature to which the fuel is raised by heat derived from the burner in passing the fuel through the fuel feed passages 28 and 31. Consequently the fuel is projected into the burner passages 21 from the openings 38 with great force and as these streams enter the passages 21 they expand rapidly in diameter and produce a strong suction for drawing air into the burner through said passages 21.

Tocause the cylindrical portion 18 of the burner to serve as a combustion chamber 1 arrange the ring 19 to project inwardly to some extent forming an annular shoulder as at the upper end of the cylindrical part of the burner and providing a central cylindrical outlet opening 43 through the ring 19 to the top d4 of the burner. This annular shoulder 4. .2 acts in the manner of a battle to hold the air and gases to some ex tent whereby the velocity by which these gases are forced through the burner tends to cause them to be completely intermingled and mixed within this part of the burner, thus producing substantially complete combustion. The gases continue to burn through the outlet 4-3 and as they rise into contact with the vessel arranged upon the supports 16.

In Figure 7 I have shown a slight modification of the burner in that instead of having two burner tips and burner passages 21 l have provided four of each of these, arranged symmetrically and these are inclined inwardly toward each other in the same man ner as where I use two.

By means of my burner I am enabled to use lower grade oils for the reason that the fuel is very highly heated before it reaches the burner tips and is so thoroughly vaporized and atomized and mixed with the air within the burner that I obtain substantially complete and perfect combustion.

It should be understood that my improved burner is capable of other applications than the one herein shown and described.

I claim:

1. A furnace of the kind described having a liquid fuel reservoir at its base, a burner supported above the base, means for forcing the fuel from the base to the burner, the burner comprising shell having a cylindrical combustion chamber open at one end and closed at its opposite end, a plurality of open ended passages leading into the chamber through its closed end, the passages inclined toward each other, burner delivery nozzles one for each passage arranged to deliver streams of fuel axially through said passages, the inclination of the several passages and delivery nozzles causing an interpenetrating of their several streams within said chamber, and elongated small diameter fuel passages in the walls of the burner, as and for the purposes specified.

2. A burner for a liquid fuel furnace or torch comprising a shell having a cylindrical combustion chamber open at one end and closed at its opposite end, a plurality of open ended passages leading into the chamber through its closed end, the passages inclined toward each other, burner delivery nozzles one for each passage arranged to deliver streams of fuel axially through said passages, and elongated small diameter fuel passages in the walls of the burner the in clination of the several passages and delivery nozzles causing an interpenetrating of their several streams within said chamber, as and for the purposes specified.

3. In a burner of the kind described, a cylindrical shell open at its top and closed at its bottom, a circumferential shoulder partly closing the top, a plurality of in wardly inclined air inlet passages at the bottom, nozzles spaced from the outer ends of said passages adapted to deliver fuel axially into said passages, an inlet for fuel at the top of the burner casing, elongated small diameter feed passages extending from the inlet to said nozzles through the walls of the casing, and the casing provided with auxiliary air inlet openings through said iciloised bottom, as and for the purpose speci- 4. In a burner of the kind described, an open ended shell, a burner wholly contained within the shell, the shell having auxiliary air inlet openings between its ends, the burner comprising a cylindrical casing having a circumferential shoulder at its upper end partly closing same and closed at its lower end, inwardly inclined inlet passages in the lower end of the, burner, said passages being flared at their lower ends, ejector nozzles arranged axially with said passages for directing streams of fuel through same, the casing beingprovided with small diameter fuel feed passages extending from its lower endto its upper end, the casing being provided with a fuel inlet at its upper end with which said small diameter passages communicate, whereby fuel fed to the burner through said passages is gasified before it reaches the burner exit openings.

In testimony whereof, I have hereunto set my hand, this 22nd day of May, 1923.

WILLIAM- F. PAGEL. 

